The frame is articulated to enable the unit to negotiate sharp curves

This is a Walthers 949-11661 HO International 7600 3-Axle Heavy-Duty Dump Truck - Assembled - Orange Cab

Size 7 x 1-3/8

The Trainz SKU for this item is P11998634

Trainz Product Id: 11553660

Athearn 87089 HO Chicago & North Western 24' Ribbed Ore Car w/Load #2 (Set of 4) ProductID_11662542 The frame is articulated toThis is an Athearn 87089 HO Scale Chicago and North Western 24' Ribbed Ore Car with Load #2 (4). Model Features: Fully assembled and ready for your layout,Upgrades include new wire and plastic handrails, stirrup steps, ladders and underbody details , Removable ore load in each car , Machined metal wheels , McHenry scale knuckle spring couplers installed , A total of 13 different road numbers available for each road name. Condition: Factory New (C 9)